External gas-phase recycling device of liquid carbon dioxide storage tank

The invention provides an external gas-phase recycling device of a liquid carbon dioxide storage tank. The external gas-phase recycling device comprises a liquid carbon dioxide storage tank, a liquidcarbon dioxide buffer tank, a heat exchanger and a refrigeration machine set which are connected in sequence. By adopting an external circulation recycling reuse mode, only one set of the device provided by the invention is needed under the condition of multiple liquid carbon dioxide storage tanks of a company, the storage tanks do not need to be stopped to be cleaned in the mounting process are not transformed, the device is applicable to storage tanks of any modes, the utilization rate can be greatly increased, gasified carbon dioxide can be circulated and gasified by using the device, thenemission of the carbon dioxide can be reduced, thus being energy-saving and environmental-friendly. 本发明提供种液体二氧化碳储罐气相外回收装置，包括依次连接的液体二氧化碳储罐、液体二氧化碳缓冲罐、换热器、制冷机组。采用外循环回收利用方式，企业有多台液体二氧化碳储罐的情况下使用套本发明的装置即可，安装过程中不用停产清空储罐且不用对储罐进行任何改造，适用